Hello World window

Question

Create a window that says hello world inside and nothing else. You can not have any ok or cancel buttons inside. It must be just a plain window that says hello world. I do not care about the contents of the window frame or how the window looks, but inside it must say hello world only.

Example:

Shortest code wins.

EDIT: I am sorry Johannes Kuhn the window has to actually stay there, it may not close right away. I didn't think of this scenario and as such didn't account for this.

EDIT 2: We currently have 3 tied answers (20 characters). Any suggestions of who should be the winner is welcome.

Answer 1

Windows Command Prompt, 26

echo Hello World>.hta&.hta

Answer 2

R, 23

plot(1,m="Hello World")

This opens a plot window.

Answer 3

Dyalog APL (20)

⎕SM←'Hello World'1 1

Picture:

Answer 4

bash 20 19 chars

Thanks @manatwork for the useless space after -p!

read -pHello\ World

In action:

echo 'read -pHello\ World' >/tmp/helloworld.sh
chmod +x /tmp/helloworld.sh

Than double click from file manager:

And see:

Having bash as default shell.

19 16

As question stand for only Hello World and Nothing else, the window have to stay but nothing like print text only once or so on, I think this match requirement too!

yes Hello\ World

There is only 16 chars.

echo >/tmp/helloworld.sh 'yes Hello\ World'

With same procedure this give:

Answer 5

HTML (kinda), 17

data:,Hello World

Paste that into your browser's address bar.

Javascript, 25

open("data:,Hello World")

This uses your browser's window.open and a data uri.

A Data URIs's mime-type and charset default to text/plain;charset=US-ASCII when omitted.

Javascript, 19

eval($("s").text())

This one only works when this answer is the top (or accepted) answer and it is run on THIS stackoverflow page (via your JavaScript console). :-)

open("data:,Hello World");

Answer 6

Powershell, 23

'Hello World'>.hta;.hta

Answer 7

Matlab, 30 27 20

title('Hello World')

Are plot windows allowed? It does not have any buttons inside.

Answer 8

Java, 117 chars

import java.awt.*;class C{public static void main(String[]a){new Frame(){{add(new Label("Hello World"));show();}};}}

With formatting:

import java.awt.*;

class C {
    public static void main(String[] a) {
        new Frame() {
            {
                add(new Label("Hello World"));
                show();
            }
        };
    }
}

We can avoid having to explicitly declare a variable by using initializer blocks inside an anonymous subclass of Frame. Interestingly, using awt, it's just as many characters to import java.awt.*; as it is to just fully qualify both classnames.

Answer 9

Mathematica 29 27 25

With 1 byte saved thanks to CatsAreFluffy.

DialogInput@"hello world"

Answer 10

Shell, 32

xmessage -buttons '' Hello World

Answer 11

Ruby with Shoes, 28

Shoes.app{para'Hello World'}

Result:

Answer 12

Rebol 2, 29

view layout[txt{Hello World}]

Answer 13

Python 2/3, 54 characters

Capitalize the t in tkinter to make it work on Python 2.

__import__("tkinter").Label(text="Hello World").pack()

Answer 14

Windows Batch, 23

@pause|echo Hello World

• Opens a black window that shows Hello World, nothing else.
• Now the windows stays open
• There are no buttons in the window.

Answer 15

ExtJS (Javascript) 44

new Ext.Window({html:'Hello world',}).show()

new Ext.Window({html:'Hello world',}).show()

<link rel="stylesheet" type="text/css"
  href="http://dev.sencha.com/deploy/dev/resources/css/ext-all.css"/>
<script type='text/javascript'
  src="http://dev.sencha.com/deploy/dev/adapter/ext/ext-base.js"></script>
<script type='text/javascript'
  src="http://dev.sencha.com/deploy/dev/ext-all.js"></script>

Answer 16

Processing, 23

Based on my answer here: Make a PNG image with "Hello World!" with programming APIs, in the shortest code possible

text("HeΠo World!",9,8);

---

24 char non-cheating solution:

text("Hello World!",9,9);

Answer 17

Tcl/Tk, 34

pack [label .l -text Hello\ World]

Answer 18

AutoHotkey, 26

GUI,Add,Text,,Hello World!

Answer 19

AutoIt v3, 32

ToolTip("Hello World")
Sleep(9^9)

Answer 20

HTML, 11

Hello World

Screenshot:

I guess this shouldn't count, but I think it would be interesting to see such an answer here.

Answer 21

PowerShell: 162 124 114 or 20

---

The Long Way Around

($t=($a='New-Object Windows.Forms')+".Label"|iex).Text='Hello World';($x=iex $a".Form").Controls.Add($t);$x.Show()

Since PowerShell really doesn't have any built-in GUI functionality, I'm having a hard time coming up with anything shorter than this which I feel really fits the original spirit of the challenge. (Or, at least, fits within the parameters several of us have assumed were implied.)

Changes from original:

• Removed window size definition. Apparently, it's optional and the default is plenty large enough.
• Incorporated changes provided by SpellingD in comments. Note: The window which spawns will hang - you'll need to kill PowerShell via Task Manager.

---

Alternative 20-Character Approach

Removing some assumed-implied requirements, we can also meet this challenge a-la Johannes Kuhn with this:

'Hello World';for(){}

Save as a .ps1 file. Make sure the system's ExecutionPolicy allows unsigned scripts. Right-click and select "Run with PowerShell".

Answer 22

Factor, 36 code + 23 imports = 59

USING: ui ui.gadgets ; "Hello World" <label> "" open-window

When this is run inside the listener, the imports will be brought in automatically. You only need them to deploy a standalone executable.

Answer 23

Groovy, 68 27

Using console.

print"Hello World";for(;;);

Using Frame.

new java.awt.Frame(){{add new java.awt.Label("Hello World")}}.show()

Inspired by @swilliams Java answer.

Answer 24

Processing, 37 chars:

void draw(){text("Hello World",0,9);}

Various things used to reduce strokes:

• Sketch window is spawned by default; no need to manually create it
• Using draw is shorter than setup (although the text is then redrawn each frame)
• Uses default size, background, fill, font, and font size
• You don't actually need all 10 pixels height for the text

Answer 25

Bash (36 chars)

xmessage -buttons "" "Hello World!"

Looks like crap, but works as requested.

Answer 26

Ghostscript 50

0 0 moveto/Courier 20 selectfont(Hello World)show

Could make it 49 by using a 9-point font, but it's a little hard to read.

Can make a smaller window by invoking gs with a geometry argument for an additional 8 chars.

gs -g200x30 hello.ps

Answer 27

C#, 72

class P{static int Main(){System.Console.Write("hello world");for(;;);}}

Based on the answer by @Noctis. I would have suggested it as a comment if I had enough Rep.

Answer 28

Delphi - 73 62

uses Dialogs;begin MessageDlg('Hello World',mtCustom,[],0)end.

Edit after @manatwork and @Gareth 's suggestions. Which actually brings me to a character count of 62.

Answer 29

Shell script: 56 character

convert -size 99x9 xc: -draw 'text 0,10 Hello\ World' x:

Sample output:

Answer 30

Ti84-Basic, 25

ClrHome
Disp "HELLO WORLD

Arduino, 27

Serial.print("Hello World")

Place this in void setup()

Game Maker Language, 40

show_message_ext("Hello World","","","")

I'm pretty sure this is the shortest way without adding any extension packages.